Home / 4,153.10-6,230.70-1,379.78

Finding the Fourth Proportional to 4,153.10, 6,230.70 and 1,379.78

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Solution

The fourth proportional to 4,153.10, 6,230.70 and 1,379.78 is: 2,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,153.10 : 6,230.70 = 1,379.78 : x
  2. Step 2: Convert to fraction form
    4,153.10/6,230.70 = 1,379.78/x
  3. Step 3: Cross multiply
    4,153.10x = 6,230.70 × 1,379.78
  4. Step 4: Simplify right side
    4,153.10x = 8,597,018.62
  5. Step 5: Solve for x
    x = 8,597,018.62/4,153.10
  6. Step 6: Final answer
    x = 2,070.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.